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Following the query here:

QGIS capture screenshot of visible map (PyQGIS or other alternatives)

I would like to have the Export PDF option confined to clicking the button on my keyboard.

By using the solutions available here:

https://datatofish.com/screenshot-python/

I tried to do something like this with my code:

 import keyboard

 # if keyboard.is_pressed('Alt+S'):  (optionally, although I can still use the Run function in my Python console)

 file_path = filedialog.asksaveasfilename(defaultextension='.png')
 iface.mapCanvas().saveAsImage(file_path)

But I am getting errors i.e.

Traceback (most recent call last): File "C:\PROGRA~1\QGIS3~1.12\apps\Python37\lib\code.py", line 90, in runcode exec(code, self.locals) File "", line 1, in File "", line 5 file_path = filedialog.asksaveasfilename(defaultextension='.png') ^

IndentationError: expected an indented block**

How can I save my screenshot with choosing and file name option?

I used another approach:

    iface.mapCanvas().saveAsImage(QFileDialog.getSaveFileName(mainWin, "Save 
    file", "", "PNG Format (*.png)"))

but I am getting an error here:

Traceback (most recent call last): File "C:\PROGRA~1\QGIS3~1.12\apps\Python37\lib\code.py", line 90, in runcode exec(code, self.locals) File "", line 1, in File "", line 1, in TypeError: QgsMapCanvas.saveAsImage(): argument 1 has unexpected type 'tuple'

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If line 90 follows an if statement, it must be indented in Python.

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